Author

Meng Tian

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Preprint Oct 2026

DK-VLM: Geometry as Position for Spatial Reasoning in Vision-Language Models

Vision-language models still struggle to understand 3D spatial relations across views and update spatial judgments as the observer moves. A common approach fuses 3D reconstruction features into visual tokens, but aligning these features with pretrained semantic representations remains challenging under limited spatial...

Han Su, Meng Tian, Tian-Yu Huang et al. · 0 citations

Preprint Aug 2026

4D-WAM: 4D Consistent World Modeling for Autonomous Driving

4D-WAM is presented, a model that leverages geometric foundation models for training-time supervision to enable 4D consistent world modeling and effectively models 4D consistent scene evolution and achieves state-of-the-art performance on challenging NAVSIM-v1 and NAVSIM-v2 benchmarks.

Jiacheng Fu, Yibo Yuan, Meng Tian et al. · 1 citation · ⚡1

Preprint Aug 2026

SUV: Future Scene Understanding as Video Generation for End-to-End Driving

This work introduces SUV, a unified end-to-end driving framework that casts future Scene Understanding as Video generation using a pretrained video foundation model, and shows that structured future supervision and direct future-stream access yield higher trajectory planning scores.

Yibo Yuan, Jiacheng Fu, Jiangtong Zhu et al. · 1 citation